test: verify bundled decoders and artifact budgets (#7)

tests/e2e/viewer3d.subpath.spec.ts

@@ -1,16 +1,44 @@
 import { expect, test } from '@playwright/test';
+import { readFileSync } from 'node:fs';
 
-test('viewer3d resolves hashed Draco and staged IFC decoders under a production subpath', async ({
+const basisFixture = readFileSync(
+  new URL('../fixtures/viewer3d/BasisTexture.gltf', import.meta.url),
+);
+const basisTexture = readFileSync(
+  new URL('../fixtures/viewer3d/BasisTexture.ktx2', import.meta.url),
+);
+
+test('viewer3d resolves bundled model decoders under a production subpath', async ({
   page,
 }) => {
   const failedRequests: string[] = [];
   const responseUrls: string[] = [];
   page.on('requestfailed', (request) => failedRequests.push(request.url()));
   page.on('response', (response) => responseUrls.push(response.url()));
+  await page.route(
+    /^https?:\/\/[^/?]+\/viewer-3d\/e2e-fixtures\/BasisTexture\.gltf(?:\?.*)?$/,
+    (route) =>
+      route.fulfill({
+        body: basisFixture,
+        contentType: 'model/gltf+json',
+      }),
+  );
+  await page.route(
+    /^https?:\/\/[^/?]+\/viewer-3d\/e2e-fixtures\/BasisTexture\.ktx2(?:\?.*)?$/,
+    (route) =>
+      route.fulfill({
+        body: basisTexture,
+        contentType: 'image/ktx2',
+      }),
+  );
 
-  for (const fixture of ['Duck.optimized.glb', 'Cube.ifc']) {
+  for (const fixture of [
+    'samples/Duck.optimized.glb',
+    'e2e-fixtures/BasisTexture.gltf',
+    'samples/Cube.ifc',
+  ]) {
     await page.goto(
-      `http://127.0.0.1:43174/viewer-3d/?model=/viewer-3d/samples/${fixture}`,
+      `http://127.0.0.1:43174/viewer-3d/?model=/viewer-3d/${fixture}`,
     );
     await page.waitForFunction(
       () =>
@@ -31,6 +59,11 @@ test('viewer3d resolves hashed Draco and staged IFC decoders under a production
       /\/viewer-3d\/assets\/draco_decoder-.+\.wasm$/.test(new URL(url).pathname),
     ),
   ).toBe(true);
+  expect(
+    responseUrls.some((url) =>
+      /\/viewer-3d\/assets\/basis_transcoder-.+\.wasm$/.test(new URL(url).pathname),
+    ),
+  ).toBe(true);
   expect(responseUrls.some((url) => url.endsWith('/viewer-3d/web-ifc/web-ifc.wasm'))).toBe(true);
   expect(failedRequests).toEqual([]);
 });